Ever look at your VA rating letter and wonder if someone at VBA failed high-school algebra? You’re not wrong. Welcome to VA math, where 1 + 1 = “Nice try, Sergeant,” and every new disability gets taken out of whatever percent of you the VA still considers “healthy.”
This calculator reverse-engineers the mystical ritual they call “the Combinator” (yes, that’s its real name—no, it does not get cooler) and shows you how your dozen ratings somehow combine into not the number you expected.
It even tells you what your actual monthly compensation should be under the 2025 rates—because while the VA likes keeping things mysterious, we prefer the revolutionary approach of telling you the truth.
Use this tool if you’ve ever asked yourself:
(Short answer: Yes. Yes they are.)


The nexus letters and DBQs from Veterans Evidence are the gold standard in private medical evidence for disability claims with the VA. Our medical team is comprised solely of top-tier physicians who are credentialed as Independent Veteran Examiners (IVE). This designation indicates the achievement of expertise and excellence in this field, as well as the demonstration of ethical practice.
Veterans Evidence is not affiliated with the U.S. Department of Veterans Affairs, thankfully.
We are the VA's worst nightmare.
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